Georgia Gunstore in Gainesville had a new one in rifle rack last week. They are closed today so I can’t confirm that it is there. You can call or email them tomorrow. mikew@gagunstore.com or (678) 906-5821
How big is your kid? Outdoor Depot in Gainesville had a very good to excellent used Micro Midas on the rack last week. It was about $350 if I recall correctly.
Didn’t know Winchester made a model 12 in 28 gauge. Got a really nice Browning made under license in early 90s in 28. Modified choke if I recall correctly.
I know little about 457s...yet. I currently own 452s and 455s. My favorite are the Varmint models. The most accurate seem to be the 452s, but the 455s are not far behind. I assume that the 457 will be similar accuracy-wise to the 455 since they use the same barrels. If planning to mount a...
Pretty sure that I have what you are looking for. Looks like the pictures you posted and the follower is just like the one in a mag for my Star 45, only smaller. 9mm round fits perfectly. If it works for you, I’ll give it to you. I’m in Gainesville.